Constraint, A rule applied to a field limiting what data can be stored, Trigger, A procedure that fires automatically when data is changed, Transaction, A sequence of operations treated as a single unit of work, Rollback, Reverting the database to its state before a failed transaction, Foreign key, Ensures data in a field matches a value in a related table

Databases: Data Integrity 3

由
列印
嵌入

視覺風格

活動設定 排行榜 作業

活動設定

排行榜

切換範本

恢復自動保存: ?